package com.czk.model.facade;

public class Popcorn {
    private Popcorn(){};
    public static final Popcorn popcorn=new Popcorn();
    public static Popcorn getInstance(){
        return popcorn;
    }
    //
    public void on(){
        System.out.println("爆米花机开");
    }
    public void off(){
        System.out.println("爆米花机关");
    }
    public void  pause(){
        System.out.println("爆米花机暂停");
    }
}
